It is unclear whether chimpanzees are unique among nonhuman species in their ability to learn behaviors from one another, or if, when other animals are studied in as much depth, similar patterns would be found.
if, when other animals are studied in as much depth, similar patterns would be found
if other animals were studied with as much depth they would exhibit similar patterns
would similar patterns be found in other animals if they were studied in as much depth
whether similar patterns would be exhibited in other animals that were studied with as much depth
whether other animals would exhibit similar patterns if they were studied in as much depth
cite: 比较容易错的是D选项,错在that were studied,首先were studied是不是表示已经研究过了,还说不知道similar pattern是否会显现,前后是矛盾的。E,虚拟语气,if they were studied,这个were不是过去式,这是虚拟语气用法。那么是不是表示与事实不想符合,即这个研究其实还没有做过,如果我们研究过的话,将会怎么样怎么样。所以答案是E。
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